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1.测试仪器:YDH—1型全自动牙髓电活力测试仪(第四军医大学齿科器材厂产),该仪器有自动开机、自动升压、自动显示测试数据,自动关机等全自动功能,其临床应用方法和性能与国外报道基本一致。该仪器可用电解质牙膏作为导电胶,本试验采用湖南日用化工总厂生产的白齿牙膏。 2.测试对象:为长沙市口腔医院口腔内科就诊的患者405人,共计测试牙齿416个。测试前问明患者无严重心脏疾患及其他全身疾患,向患者说明测试目的和方法,取得同意。被测牙应无金属修复物以免影响研究结果。
1. Test Equipment: YDH-1 automatic dental pulp electrical activity tester (Fourth Military Medical University dental equipment factory production), the instrument has automatic boot, automatic boost, automatic display test data, automatic shutdown and other automatic functions , Its clinical application methods and performance are basically consistent with foreign reports. The instrument can be used as a conductive paste toothpaste, the test using the daily chemical plant in Hunan White toothpaste. 2. Test subjects: Changsha City Stomatological Hospital, oral treatment of 405 patients, a total of 416 teeth test. Before the test asked patients without serious heart disease and other systemic diseases, explain to the patient the purpose and method of testing, obtain consent. The tooth should be metal-free prosthesis to avoid affecting the results.